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Rhamphicarpa fistulosa
Rice vampireweed is an annual, partly parasitic herb of seasonally flooded wetlands in Africa, most notable as a weed that drains rice crops. It is not a plant normally grown in gardens, so care advice is largely irrelevant beyond controlling it.
Rhamphicarpa fistulosa (common name: rice vampireweed) is a flowering plant species in the family Orobanchaceae (formerly in the family Scrophulariaceae) - and the genus Rhamphicarpa. The plant is pale-green but can turn reddish towards maturity. It has needle-like leaves and white flowers with long corolla tubes. The flowers only open after sunset and are supposedly pollinated by night moths. The plant has a broad distribution in Africa (from Guinea to Madagascar and from Sudan to South Africa) and can also be found in New Guinea and northern Australia.
Rhamphicarpa fistulosa is an annual facultative hemi-parasitic forb species. It is a very widespread species in seasonally flooded wetlands in tropical and sub-tropical Africa, and it is increasingly important as a parasitic weeds in rain-fed lowland rice systems in Africa, where yield losses of more than 60% are typically reported.
Text excerpted from the Wikipedia article Rhamphicarpa fistulosa by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
